Tomadol 1-9

Tomadol 1-9 - Names and Identifiers

Name	SURFACTANT
Synonyms	PAT WET 70 SURFACTANT Tomadol 1-9 Exfie UDA-50 as surfactant Surfonic L-12 6 Bio-Terge AS-40 CG-PN

Tomadol 1-9 - Physico-chemical Properties

Molecular Formula	C13H27SO3Na C17H35SO3Na
Physical and Chemical Properties	The chemical product is a light yellow liquid. It stinks. Relative density 1.09. Soluble in water. Stable to both acid and alkali. It has strong decontamination, penetration and foaming properties.
Use	Use 1, this product is used as detergent, wetting agent, foaming agent, oil solubilizer. Can also be used as rubber, textile, printing and dyeing, leather, paper, building asphalt and other industrial emulsifiers. 2, used as emulsifier, foam stabilizer, thickener, cleaning additives, etc

Tomadol 1-9 - Uses and synthesis methods

product features

Surfactant is a substance that adsorbs or distributes on the gas-liquid, liquid-liquid, and liquid-solid interface and can significantly change its interface properties. The molecule of surfactant has both hydrophilic atomic groups and hydrophobic atomic groups, which can change the interface energy in dilute solution and reduce the surface tension in aqueous solution. For example, the surface tension of water at 20 ℃ is 7.32 × 10-4N/m. If 0.1% polyoxyethylene lauryl ether is added, the surface tension will drop to 2.4 × 10-4~2.6 × 10-4N/m.

surfactants were first started from soap, and then developed as dyeing auxiliaries, refining agents and finishing agents in textile industry. With the progress of industry, especially due to the increasingly urgent requirements for preventing public hazards and energy conservation, surfactants have developed from the past mainly textile auxiliaries to energy conservation, prevention of public hazards, pharmaceuticals, cosmetics, food, ships, construction, Mining, plastics, rubber, oil extraction, papermaking, household detergents and other fields have become an indispensable part of industrial and agricultural production, cutting-edge science and technology and people's lives. In these fields, it is generally used as dispersant, emulsifier, flocculant, foaming agent, defoamer, antistatic agent, penetrant, solubilizer, etc., with thousands of varieties.

there are many combinations of hydrophobic and hydrophilic groups in surfactant molecules, so there are many kinds of surfactants. Hydrocarbons with 12~18 carbon atoms are the most commonly used hydrophobic groups. Because hydrophilic groups have extremely significant effects on the properties of surfactants, surfactants are often classified according to hydrophilic groups. Therefore, surfactants can be divided into ionic and non-ionic types. When it is dissolved in water, any surfactant that can ionize to generate ions is called ionic surfactant; any surfactant that cannot ionize or generate ions is called nonionic surfactant. Ionic surfactants can be divided into anionic, cationic and amphoteric surfactants according to the types of hydrophilic ions generated. Any surfactant whose hydrophilic group shows anion is called anionic surfactant; the hydrophilic group shows cationic property is called cationic surfactant; in the same molecule, there are both positive hydrophilic groups and negative hydrophilic groups, Surfactants with zwitterionic structure within a certain pH range of the medium are called zwitterionic surfactants; non-ionic surfactants do not have chemical groups that dissociate in aqueous solutions, it is not dissociated into ions in water, and the hydrophilic part is mostly oxygen-containing atomic groups, usually polyoxyethylene chains or hydroxyl groups. In addition, there are some active agents with special structures, such as fluorine-containing surfactants and silicon-containing surfactants.

classification

It is widely used in surfactant science according to its chemical structure classification. First, according to the type of hydrophilic group, that is, the electrical properties are divided into ionic type and non-ionic type. Ionic type is divided into cationic type, anionic type and amphoteric type. In addition, there are mixed surfactants that have developed rapidly in recent years, that is, ionic hydrophilic and non-ionic hydrophilic.

1. The performance and price of anionic surfactant are relatively suitable, so its output is still quite large. Anionic surfactants include common types of soaps (metal salts of higher fatty acids), sulfates, sulfonates, and phosphate salts.

2. Cationic surfactants are mainly cations composed of nitrogen atoms. Almost all used in industry are amine (ammonium) salts, which are divided into two categories: amine salt type and quaternary ammonium salt type, including primary amine salt, Secondary amine salt and tertiary amine salt are collectively called amine salt; compared with the former, the quaternary ammonium salt type is different in terms of preparation method and properties, so it is another type.

3. amphoteric surfactants are mainly carboxylate and sulfonate. Carboxylate type can also be divided into aminocarboxylic acid type and betaine type.

4. Non-ionic surfactants have good performance and many uses. In terms of quantity, they are second only to anionic surfactants and are widely used. Non-ionic surfactants are divided into polyethylene glycol type and polyol type.

5. There are two hydrophilic groups in the mixed surfactant molecule, one is charged and the other is not charged. The most commonly used are alcohol ether sulfate R(C2H4O)nSO4Na and alcohol ether carboxylate R(C2H4O)nCH2COONa.

production method

water-photo-sulfur oxidation method The preparation method includes: the sulfur oxidation of normal alkanes, the separation and neutralization of the sulfur oxidation product, and the process of stripping raw oil from the neutralization product.

Sulfur dioxide and oxygen are entered by the gas distributor at the bottom of the sulfonation reactor, so that they are well distributed in the liquid phase composed of n-alkanes and water, and the reaction temperature is controlled below 40°C. The residence time of liquid material in the reactor is 6~7min. The reaction material enters the separator from the bottom of the reactor, and the separated oil phase returns to the reactor. The separated sulfonic acid liquid passes through the gas separator to escape the sulfur dioxide and then enters the evaporator. The separated sulfuric acid phase (lower) and sulfonic acid phase (upper) are divided into a neutralization kettle and neutralized with 50% sodium hydroxide. The product is obtained.

feed ratio: n-alkane: sulfur dioxide = 1: (1.08~1.10)

Liquid phase (mass ratio): alkane: water = 1: 1

gas phase (volume ratio): sulfur dioxide: air = 2.5: 1

air velocity = 3.5~5.5 l/h cm2

Last Update：2024-04-09 22:09:11